Dual-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC) - ADS4245

ADS4245 (ACTIVE)

Dual-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC)

 

Description

The ADS424x and ADS422x family of devices are low-speed variants of the ADS42xx ultralow-power family of dual-channel, 14-bit/12-bit analog-to-digital converters (ADCs). Innovative design techniques are used to achieve high-dynamic performance, while consuming extremely low power with 1.8-V supply. This topology makes the ADS424x/422x well-suited for multi-carrier, wide-bandwidth communications applications.

The ADS424x/422x have gain options that can be used to improve SFDR performance at lower full-scale input ranges. These devices include a dc offset correction loop that can be used to cancel the ADC offset. Both DDR (double data rate) LVDS and parallel CMOS digital output interfaces are available in a compact VQFN-64 package.

The devices include internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. All devices are specified over the industrial temperature range (–40°C to 85°C).

Features

  • Ultralow Power With Single 1.8-V Supply, CMOS
    Output:
    • 183 mW Total Power at 65 MSPS
    • 277 mW Total Power at 125 MSPS
    • 332 mW Total Power at 160 MSPS
  • High Dynamic Performance:
    • 88-dBc SFDR at 170 MHz
    • 71.4-dBFS SNR at 170 MHz
  • Crosstalk: > 90 dB at 185 MHz
  • Programmable Gain up to 6 dB for SNR/SFDR
    Trade-off
  • DC Offset Correction
  • Output Interface Options:
    • 1.8-V parallel CMOS Interface
    • Double Data Rate (DDR) LVDS With
      Programmable swing:
      • Standard Swing: 350 mV
      • Low Swing: 200 mV
  • Supports Low Input Clock Amplitude Down to
    200 mVPP
  • Package: VQFN-64 (9.00 mm × 9.00 mm)

View more

Parametrics Compare all products in High Speed ADC (>10MSPS)

 
Resolution (Bits)
Sample Rate (Max) (MSPS)
# Input Channels
SNR (dB)
ENOB (Bits)
SFDR (dB)
Power Consumption (Typ) (mW)
Input Range
Interface
Operating Temperature Range (C)
Analog Input BW (MHz)
Input Buffer
Package Group
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
Rating
SINAD (dB)
Architecture
DNL (Max) (+/-LSB)
INL (Max) (+/-LSB)
Reference Mode
ADS4245 ADS4222 ADS4225 ADS4226 ADS4229 ADS4242 ADS4246 ADS4249
14    12    12    12    12    14    14    14   
125    65    125    160    250    65    160    250   
2    2    2    2    2    2    2    2   
73.4    70.9    70.8    70.5    70.5    73.6    72.8    72.8   
11.9    11.5    11.5    11.4    11.3    11.9    11.8    11.7   
89    91    89    87    80    92    87    80   
277    183    277    332    470    183    332    470   
2V (p-p)    2V (p-p)    2V (p-p)    2V (p-p)    2V (p-p)    2V (p-p)    2V (p-p)    2V (p-p)   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
Parallel CMOS
Parallel LVDS   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
600    600    600    600    600    600    600    600   
No    No    No    No    No    No    No    No   
VQFN    VQFN    VQFN    VQFN    VQFN    VQFN    VQFN    VQFN   
64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)    64VQFN: 81 mm2: 9 x 9(VQFN)   
41.00 | 1ku    14.40 | 1ku    29.50 | 1ku    39.00 | 1ku    59.85 | 1ku    28.00 | 1ku    65.25 | 1ku    118.50 | 1ku   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
73.2    70.8    70.7    70.4    70    73.5    72.6    72   
Pipeline    Pipeline    Pipeline    Pipeline    Pipeline    Pipeline    Pipeline    Pipeline   
1.7    1.5    1.5    1.5    1.5    1.7    1.7    1.7   
5    3.5    3.5    3.5    3.5    5    5    5   
Int    Int    Int    Int    Int    Int    Int    Int   

Other qualified versions of ADS4245

Version Part Number Definition
Enhanced Product ADS4245-EP Supports Defense, Aerospace and Medical Applications

Featured tools and software